[Twisted-web] web2 response.setCookie and request.getCookie shortcuts?

[Clark C. Evans]

I'm still having fun with web2, it is such a huge improvment over
twisted.web and I'm absolutely thrilled with it.  However, I have
a few suggestions:
 
   1. It would be supreme if render() and locateChild() just provided
      me the Request object; the incantation to ctx.locate() seems a
      tedious an unnecessary step.

   2. I would love a request.getCookie('cookie-name') and 
      response.setCookie('cookie-name','cookie-value', path = '/')
      helper; that adds the given cookie to the current list.

   3. Make the 'path' in the Cookie constructor and setCookie default
      to '/'.  Almost all of the time you want your cookies to be 
      site-wide; adding path = '/' to each request adds a point of
      failure that makes the system less usable.

Kind Regards,

Clark

P.S.  Following is sample cookie code that works with web2

---
from twisted.internet import reactor, defer
from twisted.web2 import server, http, resource, channel, iweb
from twisted.web2.http_headers import Cookie

class Toplevel(resource.Resource):
    addSlash = True
    def render(self, ctx):
        request = ctx.locate(iweb.IRequest)
        found = False
        for cookie in request.headers.getHeader('cookie',[]):
            if cookie.name == 'testing':
                print "found", cookie.value
                found = True
        response = http.Response(stream="Hello monkey!")
        if not found:
            print "not-found"
            cookie = Cookie("testing","womble",path="/")
            response.headers.setHeader('Set-Cookie',(cookie,))
        return response

# Standard twisted application Boilerplate
from twisted.application import service, strports
application = service.Application("demoserver")
site = server.Site(Toplevel())
s = strports.service('tcp:8080', channel.HTTPFactory(site))
s.setServiceParent(application)